解决方法：使用Apex Trigger在PO Receipt创建时更新与MDG相关的字段，并将结果传递给Ariba供应商。示例代码如下：

trigger updatePOReceipt on PO_Receipt__c (after insert) { List aribaVendorsToUpdate = new List(); for (PO_Receipt__c receipt : Trigger.new) { Id aribaVendorId = receipt.Ariba_Vendor__c; Ariba_Vendor__c aribaVendorToUpdate = new Ariba_Vendor__c(); aribaVendorToUpdate.Id = aribaVendorId; aribaVendorToUpdate.Ariba_PO_Receipt_Email__c = receipt.Email_Field__c; aribaVendorsToUpdate.add(aribaVendorToUpdate); } try { update aribaVendorsToUpdate; } catch (DmlException e) { System.debug('An error occurred: ' + e.getMessage()); } }